{description: 'Abstract parent class of all data structure types. Includes the `_as_hierarchy_` function which can generate the equivalent CEN EN13606 single hierarchy for each subtype''s physical representation. For example, the physical representation of an `ITEM_LIST` is `List`; its implementation of `_as_hierarchy_` will generate a `CLUSTER` containing the set of `ELEMENT` nodes from the list. ', package_name: openehr.base, derivation: specialization, name: DATA_STRUCTURE, abstract: true, type: 'http://openehr.org/fhir/StructureDefinition/DATA_STRUCTURE', package_version: 0.1.0-snapshot, class: logical, kind: logical, url: 'http://openehr.org/fhir/StructureDefinition/DATA-STRUCTURE', base: 'http://openehr.org/fhir/StructureDefinition/LOCATABLE', version: 0.1.0-snapshot}